[Angels are not a thing where Bolin is from, but Dean described Castiel as a spirit and Bolin knows about those so he does this the only way that makes sense to him.

He has lit a candle in the middle of his room along with some incense and a cup of fresh water. There is an apple, some rather fetching looking mushrooms and a single red spider lily placed carefully on a plate as offering.

Bolin is sitting on his knees, bent over with his hands and head touching the floor.]

Great Spirit Castiel, please hear me. Dean told me to pray to you if anything happened.. and I'm not sure if it has or not but I guess that's why I'm trying to speak to you. I've been calling him all week and he hasn't shown up to rehearsal or told anyone where he is or what he's doing...

I don't know where he lives or I would come and check on him.

Please... let me know that he's alright? I won't be mad if he's decided to drop out of the production, I'm just worried about my friend.

I, um.. okay. Okay, I'm going now. Please help yourself to these gifts.

Thank you.